Product Specification
8.5 Gb/s Short-Wavelength SFP+ Transceiver
FTLF8528P3BxV
PRODUCT FEATURES
Up to 8.5 Gb/s bi-directional
data links
Hot-pluggable SFP+ footprint
Built-in digital diagnostic functions
850nm Oxide VCSEL laser
transmitter
Duplex LC connector
RoHS compliant and Lead Free
50m on 50/125μm MMF
150m on high-bandwidth
50/125um (OM3) MMF
Metal enclosure, for lower EMI
Single 3.3V power supply
< 0.5W power dissipation
Extended operating temperature
range: -5°C to 85°C
APPLICATIONS
Tri-Rate 2.125/4.25/8.5 Gb/s Fibre
Channel
Wireless – CPRI
Wireless - OBSAI
Finisar’s FTLF8528P3BxV SFP+ transceivers are designed for use in Fibre Channel links
up to 8.5 Gb/s data rate over multimode fiber. They are compliant with FC-PI-4 Rev.
8.00
a
and SFF-8472 Rev 11.0
c
, and compatible with SFF-8432
b
and applicable portions
of SFF-8431 Rev. 4.1
d
. The product is RoHS compliant and lead-free per Directive
2002/95/EC
e
and Finisar Application Note AN-2038.
PRODUCT SELECTION
FTLF8528P3BxV
x
N
C
Extended Temperature, -5C to 85
o
C
Commercial Temperature, -5 to 70
o
C
©
Finisar Corporation Jan 25, 2011 Rev. A.3
Page 1
FTLF8528P3BxV Pluggable SFP+ Product Specification – January 2011
4.
Pin
1
2
3
4
5
6
7
Pin Descriptions
Symbol
V
EET
T
FAULT
T
DIS
SDA
SCA
MOD_ABS
RS0
Name/Description
Transmitter Ground (Common with Receiver Ground)
Transmitter Fault.
Transmitter Disable. Laser output disabled on high or open.
2-wire Serial Interface Data Line (MOD-DEF2)
2-wire Serial Interface Clock (MOD-DEF1)
Module Absent, connected to V
EET
or V
EER
Rx Rate Select:
Open or Low = 2.125 or 4.25 Gb/s Fibre Channel (Low Bandwidth)
High = 8.5 Gb/s Fibre Channel (High Bandwidth)
Loss of Signal indication. Logic 0 indicates normal operation.
Tx Rate Select:
Open or Low = 2.125 or 4.25 Gb/s Fibre Channel (Low Bandwidth)
High = 8.5 Gb/s Fibre Channel (High Bandwidth)
Receiver Ground (Common with Transmitter Ground)
Receiver Ground (Common with Transmitter Ground)
Receiver Inverted DATA out. AC Coupled
Receiver Non-inverted DATA out. AC Coupled
Receiver Ground (Common with Transmitter Ground)
Receiver Power Supply
Transmitter Power Supply
Transmitter Ground (Common with Receiver Ground)
Transmitter Non-Inverted DATA in. AC Coupled.
Transmitter Inverted DATA in. AC Coupled.
Transmitter Ground (Common with Receiver Ground)
Ref.
1
2
3
4
4
4
5
8
9
LOS
RS1
6
5
10
11
12
13
14
15
16
17
18
19
20
V
EER
V
EER
RD-
RD+
V
EER
V
CCR
V
CCT
V
EET
TD+
TD-
V
EET
1
1
1
1
1
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. T
FAULT
is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on the host board if
intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V. A high output indicates a transmitter fault
caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds. A low output
indicates normal operation. In the low state, the output is pulled to <0.8V.
3. Laser output disabled on T
DIS
>2.0V or open, enabled on T
DIS
<0.8V.
4. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V.
MOD_ABS pulls line low to indicate module is plugged in.
5. Rate select can also be set through the 2-wire bus in accordance with SFF-8472 v. 11.0
c
. Rx Rate Select is set at Bit 3,
Byte 110, Address A2h. Tx Rate Select is set at Bit 3, Byte 118, Address A2h. Note: writing a “1” selects maximum
bandwidth operation. Rate select is the logic OR of the input state of Rate Select Pin and 2-wire bus.
6. LOS is open collector output. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and
3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
©
Finisar Corporation Jan 25, 2011 Rev. A.3
Page 2
FTLF8528P3BxV Pluggable SFP+ Product Specification – January 2011
Diagram of Host Board Connector Block Pin Numbers and Names
4.
Absolute Maximum Ratings
Parameter
Maximum Supply Voltage
Storage Temperature
Case Operating Temperature
Commercial Temperature
Extended Temperature
Relative Humidity (Non-condensing)
Symbol
Vcc
T
S
T
A
Min
-0.5
-40
-5
-5
0
Typ
Max
4.0
85
70
85
85
Unit
V
°C
°C
Ref.
RH
%
©
Finisar Corporation Jan 25, 2011 Rev. A.3
Page 3
FTLF8528P3BxV Pluggable SFP+ Product Specification – January 2011
III.
Electrical Characteristics
(T
A
, V
CC
= 3.15 to 3.46 Volts)
Parameter
Supply Voltage
Supply Current
Transmitter
Input differential impedance
Single ended data input swing
Transmit Disable Voltage
Transmit Enable Voltage
Receiver
Single ended data output swing RS=’1’
Single ended data output swing RS=’0’
Data Output Rise/Fall Time @ 2.125, 4.25 Gb/s
Data Output Rise/Fall Time @ 8.5 Gb/s
LOS Fault
LOS Normal
Power Supply Rejection
Deterministic Jitter Contribution @ 2.125 Gb/s
Total Jitter Contribution @ 2.125 Gb/s
Deterministic Jitter Contribution @ 4.25 Gb/s
Total Jitter Contribution @ 4.25 Gb/s
Deterministic Jitter @ 8.5 Gb/s
Pulse Width Shrinkage @ 8.5 Gb/s
Total Jitter @ 8.5 Gb/s
Symbol
Vcc
Icc
R
in
Vin,pp
V
D
V
EN
Vout,pp
Vout,pp
t
r
/ t
f
t
r
/ t
f
V
LOS fault
V
LOS norm
PSR
RX
Δ
DJ
RX
Δ
TJ
RX
Δ
DJ
RX
Δ
TJ
RX DJ
RX
DDPWS
RX TJ
Min
3.15
Typ
Max
3.45
180
Unit
V
mA
Ω
mV
V
V
mV
mV
ps
ps
V
V
mVpp
ps
ps
ps
ps
ps
ps
ps
Ref.
100
90
2
Vee
185
185
800
Vcc
Vee+ 0.8
425
800
120
60
Vcc
HOST
Vee+0.8
47.1
123.5
23.5
61.8
49.4
42.4
83.5
1
2
2
Vee
100
3
3
4
4
5
5
6
7
8
8
8
8
Notes:
1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
2. Or open circuit.
3. Into 100 ohms differential termination.
4. Unfiltered, 20 – 80 %
5. LOS is an open collector output. Should be pulled up with 4.7k – 10kohms on the host board. Normal operation is logic
0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.
6. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value
applied through the recommended power supply filtering network.
7. If measured with TJ-free data input signal. In actual application, output TJ will be given by:
TJ
OUT
=
DJ
IN
+ Δ
DJ
+
8.
(
TJ
IN
−
DJ
IN
)
2
+
(
Δ
TJ
− Δ
DJ
)
2
As defined in FC-PI-4
1
, Rev 8.0, Table 12, 800-Mx-SN-y.
©
Finisar Corporation Jan 25, 2011 Rev. A.3
Page 4
FTLF8528P3BxV Pluggable SFP+ Product Specification – January 2011
VI.
Optical Characteristics
(T
A
, V
CC
= 3.15 to 3.46 Volts)
Parameter
Transmitter
Output Opt. Pwr: 50 or 62.5 MMF
Optical Wavelength
Spectral Width
Optical Modulation Amplitude @ 2.125 Gb/s
Optical Modulation Amplitude @ 4.25 Gb/s
Optical Modulation Amplitude @ 8.5 Gb/s
Optical Rise/Fall Time @ 2.125, 4.25 Gb/s
Transmitter Waveform and Dispersion Penalty
@ 8.5 Gb/s
Relative Intensity Noise
Deterministic Jitter Contribution @ 2.125 Gb/s
Total Jitter Contribution @ 2.125 Gb/s
Deterministic Jitter Contribution @ 4.25 Gb/s
Total Jitter Contribution @ 4.25 Gb/s
Receiver
Receiver OMA Sensitivity = 2.125 Gb/s
Receiver OMA Sensitivity = 4.25 Gb/s
Receiver OMA Sensitivity = 8.5 Gb/s
Average Receiver Power
Optical Center Wavelength
Optical Return Loss
LOS De-Assert
LOS Assert
LOS Hysteresis
Symbol
P
OUT
λ
σ
OMA
OMA
OMA
t
r
/ t
f
TWDP
RIN
TX
Δ
DJ
TX
Δ
TJ
TX
Δ
DJ
TX
Δ
TJ
RxSENS
RxSENS
RxSENS
Rx
MAX
λ
C
LOS
D
LOS
A
Min
-8.2
840
196
247
302
90
4.2
-128
56.5
119.6
28.2
59.8
49
61
76
0
770
12
-30
0.5
860
-18
Typ
Max
-2
860
0.65
Unit
dBm
nm
nm
μW
μW
μW
ps
dB
dB/Hz
ps
ps
ps
ps
μW
μW
μW
dBm
nm
dB
dBm
dBm
dB
Ref.
1
2
3
4
4
Notes:
1. Class 1 Laser Safety per FDA/CDRH, and EN (IEC) 60825 laser safety standards.
2. Unfiltered, 20-80%. Complies with FC 1x and 2x eye mask when filtered.
3. TWDP is calculated with a 1,0 equalizer and a 6,860 MHz Gaussian filter for the fiber simulation. Jitter values at
γ
T
and
γ
R
are controlled by TWDP and stress receiver sensitivity.
4. If measured with TJ-free data input signal. In actual application, output TJ will be given by:
TJ
OUT
=
DJ
IN
+ Δ
DJ
+
(
TJ
IN
−
DJ
IN
)
2
+
(
Δ
TJ
− Δ
DJ
)
2
©
Finisar Corporation Jan 25, 2011 Rev. A.3
Page 5
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